Haruna Kawakita is a fresh graduate working as an editor. One day, she is assigned as the editor for "Kuda," the company's star writer. On the surface, Kuda appears to be a gentle and kind elderly man, but in reality, he has long harbored an obsessive desire for voluptuous, alluring women. Unaware of Kuda's abnormal tendencies, Haruna gradually falls victim to his cunning sexual harassment. Eventually, Haruna is repeatedly made to climax by the younger-looking, lecherous old man, sinking into depravity with his aged cock in a shocking turn of events.